You can download content from your app for people, schedule, multi-track, news feed, crowd pics, documents, sponsors, and poll type pages.
On your dashboard, find the app that you'd like an export for and click the gear icon in the upper right corner.
From the dropdown, select "Content Export".
A modal will appear with a list of the exportable pages in your Yapp.
When you click the download arrows on the right side, these pages will download to your computer as .CSV files. You can open a CSV file in Excel.
Upon opening the file, you'll see the content of the selected page. Any photos will be represented as a long URL from CloudFront.
Copy and paste this link into your browser and you'll be able to download the photo from the web.